MTP2.0_CSharp/Muchinfo.Common/Fx4.0/Muchinfo.ChartClient/MuchInfo.Chart/MuchInfo.Chart.WPF/Controls/Utilities/ChartMenuItem.xaml.cs

using System;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Input;
using System.Windows.Media;

namespace MuchInfo.Chart.WPF.Controls.Utilities
{
    /// <summary>
    /// ChartMenuItem.xaml 的交互逻辑
    /// </summary>
    public partial class ChartMenuItem : UserControl
    {
        #region Fields

        public object theItem;

        private bool _isMouseDown;
        private EventHandler _onClick;
        private PopupMenu _popupMenu;

        #endregion Fields

        #region Constructors

        public ChartMenuItem(string txt, EventHandler onClick)
            : this(txt, null, onClick)
        {
        }

        public ChartMenuItem(string txt, ImageSource image, EventHandler onClick)
        {
            base.MouseEnter -= this.ChartMenuItem_MouseEnter;
            base.MouseLeave -= this.ChartMenuItem_MouseLeave;
            base.MouseLeftButtonDown -= this.ChartMenuItem_MouseLeftButtonDown;
            base.MouseLeftButtonUp -= this.ChartMenuItem_MouseLeftButtonUp;

            base.MouseEnter += this.ChartMenuItem_MouseEnter;
            base.MouseLeave += this.ChartMenuItem_MouseLeave;
            base.MouseLeftButtonDown += this.ChartMenuItem_MouseLeftButtonDown;
            base.MouseLeftButtonUp += this.ChartMenuItem_MouseLeftButtonUp;
            this._isMouseDown = false;

            this.InitializeComponent();

            this.lblMenu.Text = (txt);
            this._onClick = onClick;
            if (image != null)
            {
                this.imgMenu.Source = image;
                this.imgMenu.Width = 16.0;
                this.imgMenu.Height = 16.0;
            }
        }

        #endregion Constructors

        #region Methods

        #region Internal Methods

        internal void HideHover()
        {
            this.Hover.Visibility = Visibility.Collapsed;
        }

        internal void SetPopupMenu(PopupMenu aPop)
        {
            this._popupMenu = aPop;
        }

        #endregion Internal Methods

        #region Private Methods

        private void ChartMenuItem_MouseEnter(object sender, MouseEventArgs e)
        {
            bool flag = this.ActualWidth.Equals(0) || this.ActualHeight.Equals(0);
            if (!flag && this._onClick != null)
            {
                this.Hover.Visibility = Visibility.Visible;
            }
        }

        private void ChartMenuItem_MouseLeave(object sender, MouseEventArgs e)
        {
            this.Hover.Visibility = Visibility.Collapsed;
        }

        private void ChartMenuItem_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
        {
            this._isMouseDown = true;
        }

        private void ChartMenuItem_MouseLeftButtonUp(object sender, MouseButtonEventArgs e)
        {
            if (_isMouseDown)
            {
                if (this._onClick != null)
                {
                    this._onClick.Invoke(this, e);
                }

                this._popupMenu.ClosePopup();
            }
            this._isMouseDown = false;
        }

        #endregion Private Methods

        #endregion Methods
    }
}